Rotary folding mechanism for printing-presses.



J. J. WALSER. ROTARY FOLDING MEGHA'NISM FOR PRINTING ,PRESSES.

APPLICATION IILED MAR. 90, 1908.

Patented Sept..29 1908.

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J. J. WALSERQ ROTARY FOLDING MECHANISM FOR PRINTING PRESSBS. APPLICATIONFILED MAB. 30, 1908.

899,772. v Patented Sept.29, 1908.

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J. J. WALSER. v ROTARY FOLDING MECHANISM FOR PRINTING PRESSES.

' APPLIOATION FILED MAR. 30, 190B.

Patented Sept. 29, 1908.

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V UNITED STATES PATEN OFFICE- JOSEPH J. WALSER, or CHICAGO, ILLINOIS,ASSIGNOR TO THE GOSS PRINTING PRESS COM- PANY, OF .OHIGAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

ROTARY FOLDING MECHANISM FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented Sept. 29, 1908.

\ Application filed March 30,1908. Serial No. 424,177.

' anism for Printing-Presses, of which the following is a specification,reference being had to the accompanying drawings. My invention relatesto improvements in rotary folding mechanism for printing presses andparticularly to improvements in the mechanism shown and described inLettors Patent of the United States, No. 870,964, to Hans P. Husby,granted November 12,

I 1907, in which the folding blade in a rotary carrier is operated fromnormal position position into normal position-by two moving guideswhich, While traveling in the same direction with the folding bladesuccessively act upon it to move it into and. out of operativeposition;. and'its object is to provide new and improved mechanism bywhich the folding blade may be operated without any blow or violentcontact of parts, thereby increasing the speed at which the blade may beoperated.

In the accompanying drawings :Figure 1 is a bottom view with the rotarycarrier broken away, and with the folding rollers removed. Fig. 2 is anend View, being a section on line 22 of Fig. 1. Fig. 3 is an end View,being a section on line 22 of Fig. 1, but showing the tumbling-lever andoperating mechanism in different positions. Fig. 4 is a detail, being anisometric view of the tumbling-lever.

the usual manner and with impalingpins 11 which may be of any well-knownform, description and method of operation and are therefore onlyconventionally illustrated.

12 indicates folding blade shafts which carry folding blades 13 andwhich shafts are journaled in suitable supports, as 14, in the rotarycarrier 5.. a V

15 indicates a tumbling-lever which is I mounted upon one end of eachshaft 12. As

is best shown in Fig. 4, this tumbling-lever 15 is provided upon itsouter surface with two studs 16, preferably in the form of roll- I ers,and located one at each end of the tum- Y bling-lever. Upon its other orrear side the tumbling-lever 15 is provided with two recesses :17 whichextend inwardly from each end towards the center of the tumbling-leverand are of somewhat less depth than the thickness of the tumbling-lever.The recesses 17 are adapted to engage an operating stud on the rotarydisk hereinafter described.

18 indicates a circular guide which is supported upon suitable supports,as 19, exterior to the rotary carrier 5. The lnner surface of intooperative position and out .of operative the guide 18 forms a bearingfor the tumbling lever 15, whereby, when the tumbling-lever is notoperated to fold the paper, the folding blade may beheld in normalinoperative position, which, in the form of my invention shown in thedrawings, is with the tumbling-lever and folding blade at right anglesto the diameter of the rotary carrier which passesthrough the center ofthe folding blade shafts 12. The guide 18 is broken away at the bottomto leave an open space above the folding rollers for the operation ofthe tumbling-lever.

20 indicates folding rollers mounted in the usual manner in any suitableframework and operating in the usual manner to fold the papertransversely when the same is thrust into the bite of the foldingrollers in the manner hereinafter described. As these folding rollersmay be mounted in any wellknown and approved manner and are of the usualstructure and operation, I have not shown the method of mounting in theframework in order not to obscure the drawings with unnecessary parts.

21 indicates a shaft which is journaled near-its outer end in anysuitable portion of the framework, as 7, and at its inner end in anysuitable bracket or similar portion of the framework, as 7.

22 indicates a crank-arm on the inner end of the shaft 21.

23 indicates a stud, preferably in the form of a roller, which ismounted upon the end of the crank-arm 22 so as to be in register withand engage the recesses 17 onthe tumbling-lever 15 in the mannerhereinafter described.

2 1 indicates a gear which is keyed or otherwise secured upon the outerend of the rotary carrier shaft 6.

25 indicates a gear which is keyed or otherwise secured to the outer endof the shaft 21 and meshes with the gear 241. The gears 2125 are to eachother, respectively, as two to one, whereby the gear 25 will be rotatedtwice for each rotation of the gear 24 and of the rotary carrier.

26 indicates a gear which is keyed or otherwise secured to the rotarycarrier shaft 6 and is located between the gear 24 and the circularguide 18 near the outer surface of the tumbling-lever.

27 indicates a gear which is mounted upon a stud 28 on th framework 7and meshes with the gear 26. The gears 2627 are to each other as six toone, whereby the gear 27 is given six rotations for each rotation of thegear 26 and of the rotary carrier 5.

29 indicates a disk which is formed integral with or secured upon theinner surface of the gear 27, and is provided with a hub 30 circular insection and shown in dotted lines in Figs. 2 and 3.

31 indicates a circular flange extending from the inner surface of thedisk 29 and perpendicular thereto and having its interior surfaceconcentric with the exterior surface of the hub 30, forming between thema curved recess or groove 32 of a width adapted to receive one of thestuds 16 and permit it to travel therethrough freely but without lostmotion.

The several rotating parts are driven so as to rotate in the directionindicated by arrows in the several figures,that is to say, the shaft 21and the gear 28 rotate in the same direction with each other and in theopposite direction to that of the rotary carrier 5. The axial lines ofthe shaft 21 and of the gear 27 and disk 29 are a short distance abovethe axial lines of the folding rollers 20, and are placed one upon eachside of the vertical longitudinal plane of the machine.

The operation of the above-described mechanism is as follows:As therotary carrier rotates, the folding blade shafts and of course with themthe folding blades and tumbling-levers are carried around with thecylinder, and the tumbling-lever bearing upon the circular guide 18, asabove described, the folding blade is held in normal inoperativeposition until its lead end reaches the opening in the bottom of thecircular guide above the folding rollers. At this moment, the shaft 21rotating in the direction indicated by the arrows and carrying the stud23 in the same direction as the travel of the lead end of thetumbling-lever, the recess 17 engages the stud 23, the parts being inthe position shown in Fig. 2. As the rotation continues, the engagementof the recess in the lead end of the tumblinglever 15 with the stud 23will cause the tumbling-lever to be moved into folding position, as isshown in solid lines in Fig. 3, and, as this moving of thetu1nbling-leve1"is effeeted by the cooperation of the stud with the leadend of the tumbling-lever while both parts are traveling in the samedirection, the lead end of the tumbling-lever will be engaged in normalposition and moved into folding position without any blow or violentcontact of parts, and the paper, delivered to the cylinder in anywell-known and usual manner, severed by the knives transversely, will betucked by the folding blades between the folding rollers 20. At thismoment,-that is to say, when the parts are in the position shown insolid lines in Fig. 3,the stud 23 will leave its engagement with theleading end of the tumbling lever, and, the rotation of the parts beingproperly timed, at this same moment the lead end of the flange 31 willreach the position shown in Fig. 3 and the stud 16 upon the outersurface of the tumbling-lm'er 15, which has so far been at the lead endof the tumbling-lever, will enter the curved groove 32 between the innersurface of the flange 31 and the outer surface of the hub 30. As

the rotation thereupon continues, the engagement of the roller 16 in thegroove 32 will cause the tumbling-lever to be rocked out of foldingposition into normal position. By this operation, the tumbling-leverwill be reversed, so that what was at the beginning of its operation thelead end hecomes its rear end, and, by the time it is thus rocked intonormal position and delivered to the guide 18, the stud heretoforeengaged by the groove will be freed from the groove. As this engagementofthe stud and the groove and the rocking of the tumbling-lever fromfolding position into normal position are accomplished while the engagedstud on the tumbling lever and the. engaging groove are both travelingin the same direction, the movement of the tumbling-lever and thereforeof the folding blade from folding position into normal position will beaccomplished without any blow or violent contact of parts. Because thefolding blade is operated as above described by rotary moving memberstraveling during their operation on the folding blade in the samedirection therewith and therefore without violent contact of parts, thespeed at which the folding mechanism may be operated is greatlyincreased.

It will, of course, be understood that my improved folding mechanism asabove described is adapted to fold a web of paper transversely, andparticularly adapted for attachment to web-perfecting presses. As theweb is delivered to the folding cylinder and carried around thereby inany wellknown manner, and as the method of delivery of the web to therotary carrier is well understood, I have not illustrated the web or themechanism for delivering it in the drawings in order not to obscure thedrawings by the illustration of unnecessary parts.

I have described my mechanism as being operated with the parts rotatingin the directions indicated by arrows. It will of course be understoodthat the parts may be rotated in the opposite direction, thepositi on ofthe cutting cylinder being of course suitably changed, and the operationof my devices will be the'same in effect, the only difference being thatin this case the tumbling-lever will be moved from normal position intofolding position by the engagement of the stud 16 on the lead end of thetumbling-lever with the groove 32 on the disk 29 and will be moved outof folding position into normal position by the engagement of the stud23 with the corresponding recess 17.

That which I claim as my invention,'and desire to secure byLettersPatent is,

1. The combination with a rotary carrier, and a folding blade carriedthereby, of a tumbling-lever on said folding blade provided upon oneside thereof with a recess at each end and upon the other side thereofwith a stud at each end, and moving means adapted to engage the recessed.end of said tumbling-lever and one of the studs thereon and move thesame from normal position into folding position and from foldingposition into normal position.

2. The combination with a rotary carrier,- and a folding blade carriedthereby, of a tumbling-lever on said folding blade provided with arecess at each end on one side thereof and a stud near each end on theother side thereof, and rotary members adapted to engage the recessedend of said tumblinglever and one of said studs, respectively, and movethe same out of normal position into folding position and out of foldingposition into normal position. a

3. The combination with a rotary carrier, a folding blade shaftjournaled therein, and a folding blade on said shaft, of a tumblingleveron said shaft provided with a recess at each end upon one side thereofand a stud near each end upon the other side thereof,

and a pair of moving members adapted the one to engage the recess uponthe lead end of the tumbling-lever and the other to engage the stud onthe lead end of said tumblinglever and successively move said foldingblade from normal position into folding position and from foldingposition into normal position.

4. The combination with a rotary carrier and a folding blade carriedthereby, of a tumbling-lever at one end of said folding blade and havingengaging studs upon one side one at each end and recesses upon the otherside'one at each end, a rotating member provided with a stud adapted toengage the recess on-the end of said tumbling-lever, a rotating memberprovided with a curved groove adapted to engage the stud upon the end ofsaid tumbling-lever upon its other side, and means for. rotating saidrotary members whereby said rotating members will successively engagesaid tumbling-lever, and, while traveling in the same directiontherewith, will successively receive said folding blade in normalposition and move it into folding position and move said folding bladeout of folding position into normal position.

5. The combination with a rotary carrier, and a folding blade carriedthereby, of a tumbling-lever at one end of said foldingblade havingengaging studs upon one side one at each 'end' and recesses upon theother side one at each end, a shaft, a crank on the inner end of saidshaft provided with a stud adapted. to engage the recessed end of saidtumbling-lever, a disk provided with a groove adapted to engage the studupon the lead end of said tumbling-lever, and means for rotating saidcrank and said disk Whereby the stud on said crank and the groove onsaid disk may successively engage said tumbling-lever while moving inthe same direction, and, while moving in the same direction therewith,successively move said folding blade from normal position into foldingposition and from folding position into .nor-

mal position.

6. The combination with a rotary carrier, a folding blade-shaft, and afolding blade thereon, of a tumbling-lever at .one end of said foldingblade shaft having engaging studs upon one side one at each end andrecesses upon the other side one at each end, a.

shaft, a crank on the inner end of said shaft provided withv a studadapted to engage the recessed end of said tumbling-lever, a diskprovided with a curved groove adapted to engage the stud upon the leadend of said tumbling-lever, means for rotating said crank and said diskin the same direction with each other and in a direction opposite tothat of the ,rotary carrier, whereby the stud on said crank and thegroove on said JOSEPH J. WALSER.

Witnesses:

W. T. Goss, LILLIAN M. CAGNEY.

